Delta LC-1250xxxx Series Specification Sheet
LC-1250xxxx Series
DELTA ELECTRONICS, INC.
1 Jan., 2008
Rev . 0H
www.deltaww.com
RoHS Compliant 2X5 SC Small Form Factor Transceiver for Gigabit
Ethernet
Features
Compliant with SFF transceiver MSA
specification
Compliant with Specifications for IEEE
802.3z/Gigabit Ethernet
LC-1250BxQxRx compliant with the
1.0625GBd Fiber Channel 100-SM-LC-L FC-PI
Rev.13
LC-1250AxFxRx compliant with the
1.0625GBd Fiber Channel FC-PI 100-M5-SN-I
Rev.13
Single +3.3V Power Supply
PECL or TTL Signal Detect level
Duplex LC connector interface
Laser Class 1 Product which comply with the
requirements of IEC 60825-1 and IEC 60825-2
RoHS Compliant per Directive 2002/95/EC.
Description
The LC-1250xxxx series are high performance,
cost effective optical transceivers intended for
1250Mb/s. They are designed to provide Gigabit
Ethernet compliant link at 1250Mb/s for short,
intermediate and long reach links, respectively.
The LC-1250xxxx series provide with the LC
receptacle that are compatible with the industry
standard LC connector.
The LC-1250xxxx series are Class 1 eye safety
product. The optical power levels, under normal
operation, are at eye safe level.
Applications
Gigabit Ethernet/Fast Ethernet
Switched backplane applications
File server interface
Performance
LC-1250AxFxRx:
850nm VCSEL, up to 500m in 50/125μm MMF
850nm VCSEL, up to 220m in 62.5/125μm MMF
LC-1250BxQxRx:
1310nm FP laser, Data Link up to 10km in
9/125um SMF
1310nm FP laser, up to 550m in 50/125μm MMF
1310nm FP laser, up to 550m in 62.5/125μm
MMF
LC-1250xxxx Series
DELTA ELECTRONICS, INC.
2 Jan., 2008
Rev . 0H
www.deltaww.com
Absolute Maximum Ratings
Parameter Symbol Min. Typ. Max. Unit Note
Storage Temp erature Ts -40 85 ºC
Lead Soldering Temperature T
SOLD
260 ºC
Lead Soldering Time t
SOLD
10 sec.
Supply Voltage VCC 0 5 V
Recommended Operating Conditions
Parameter Symbol Min. Typ. Max. Unit Note
Ambient Operating Temperature TA 0 70 ºC 1
Supply Voltage VCC 3.135 3.465 V
Note:
1.See ordering information for detail
Electrical Characteristics
( V
CC
= 3.135 to 3.465V)
Parameter Symbol Min. Typ. Max. Unit Note
Transmitter
Transmitter Data Input Voltage-Low VIL-V
CC
-1.810 -1.475 V
Transmitter Data Input Voltage-High VIH-V
CC
-1.165 -0.880 V
Transmitter Disable Input-High V
DISH
2 VCC V
Transmitter Disable Input-Low V
DISL
0 0.8 V
Receiver
Data Output Voltage-Low VOL-V
CC
-1.95 -1.62 V
Data Output Voltage-High VOH-V
CC
-1.045 -0.74 V
PECL SD Output
LOW level output voltage
HIGH level output voltage
V
SDL-VCC
V
SDH-VCC
-1.95
-1.05
-1.62
-0.74
V
TTL SD Output
LOW level output voltage
HIGH level output voltage
V
SDL
V
SDH
0
2
0.8
VCC
V
LC-1250xxxx Series
DELTA ELECTRONICS, INC.
3 Jan., 2008
Rev . 0H
www.deltaww.com
Optical Performance Specification
( V
CC
= 3.135 to 3.465V )
Parameter Symbol Min. Typ. Max. Unit Note
Transmitter
Supply Current ICC 150 mA
Output Optical Power (Avg.)
LC-1250AxFxRx
LC-1250BxQxRx
P
O
-9.5
-9.5
-4
-3
dBm
Optical Extinction Ratio ER 9 dB
Center Wavelength
LC-1250AxFxRx
LC-1250BxQxRx
λ
C
830
1274
860
1355
nm
Spectral Width (RMS)
LC-1250AxFxRx
LC-1250BxQxRx
σ
0.85
4.5
nm
Optical Rise/Fall time
LC-1250AxFxRx
LC-1250BxQxRx
t
r/tf
0.26
0.4
ns 1
Relative Intensity Noise
RIN -116 dB/Hz
Output Eye
Complies with the IEEE 802.3z
/
D2 specification, and is class 1
laser eye safety
Receiver
Supply Current ICC 120 mA
Optical Input Sensitivity (Avg.)
LC-1250AxFxRx
LC-1250BxQxRx
P
IN
-17
-19
dBm 2
Optical Receiver saturation (Avg.) P
SAT
-3 dBm
Input Optical Wavelength
LC-1250AxFxRx
LC-1250BxQxRx
λ
830
1274
860
1355
nm
Optical Rise/Fall time
LC-1250AxFxRx
LC-1250BxQxRx
t
r/tf
0.36
0.5
ns 1
Signal Detect-Asserted (Avg.)
LC-1250AxFxRx
LC-1250BxQxRx
P
A
-17
-19
dBm
Signal Detect-De-ass erted (Avg.) PD -30 dBm
Signal Detect-Hysteresis PA-PD 0.5 dB
Notes:
1. These are unfiltered 20%~80% values
2. The sensitivity is provided at a BER of 1×10
-10
or better with an input signal consisting of
1250Mb/s, 2
7
-1 PRBS and ER=9dB.
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